The plants above have naturalized in a weedy prairie to the south and west of my house just across the street from Denver in unincorporated Arapahoe county. They look remarkably like the wild plants I first saw in late January of 1994 near Springfontein in the the prairies west of the Drakensberg (Maloti) mountains. This picture taken September 9, 2014.
Springfontein: Latitude -30.26667 and longitude of 25.7. Elevation: 1514 M. (4967′)
Seed first collected in January, 1994 near Springfontein, in the Orange Free State.
A self sown seedling that appeared in a chink of a wall at Denver Botanic Gardens shows the growth habit–slightly shrubby and distinct from most other hardy delospermas.
Type specimen at the Bolus herbarium: